// Only using native browser features (no jQuery).
// Uses `fetch`, `DOMParser` and `querySelectorAll`.

const getTitle = (url) => {  
  return fetch(`https://crossorigin.me/${url}`)
    .then((response) => response.text())
    .then((html) => {
      const doc = new DOMParser().parseFromString(html, "text/html");
      const title = doc.querySelectorAll('title')[0];
      return title.innerText;
    });
};


var urls = [
  'https://medium.com/@unakravets/the-sad-state-of-entitled-web-developers-e4f314764dd',
  'http://frontendnewsletter.com/issues/1#start',
  'https://groups.google.com/forum/#!topic/v8-users/PInzACvS5I4',
  'https://www.youtube.com/watch?v=9kJVYpOqcVU',
]

// This one keeps the order the same as the URL list.
Promise.all(
  urls.map((url) => getTitle(url))
).then((titles) => {
  console.log(titles);
});